Shanghai Disneyland, 72 hours free transit?

We are planning a trip to go to Shanghai Disneyland in 2018. Our flight will be from the US to Shanghai (stay for two days) and then on to Hong Kong for another two days. How far away from the PVG airport is Disneyland? how far away from the airport are we allowed to travel with the 72-hour visa (i.e. can we use the 72-hour visa to fly in to Shanghai, stay at Disney for two nights, and then leave for Hong Kong)?